Mountable substrate having a cup holder



FIG. 1 is a perspective view of a mountable substrate having a cupholder, embodying my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a first side elevation view thereof;

FIG. 5 is a second side elevation view thereof; and,

FIG. 6 is a third side elevation view thereof.

The broken lines shown are included for the purpose of illustratingportions of the mountable substrate having a cup holder that form nopart of the claim.

CLAIM The ornamental design for a mountable substrate having a cupholder, as shown and described.